Finding the Fourth Proportional to 11,711.06, 17,573.52 and 4,320.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,711.06 : 17,573.52 = 4,320.72 : x
2. Step 2: Convert to fraction form
   11,711.06/17,573.52 = 4,320.72/x
3. Step 3: Cross multiply
   11,711.06x = 17,573.52 × 4,320.72
4. Step 4: Simplify right side
   11,711.06x = 75,930,259.33
5. Step 5: Solve for x
   x = 75,930,259.33/11,711.06
6. Step 6: Final answer
   x = 6,483.64